@include b(virtual-list) {
  width: 100%;
  overflow-y: auto;
  position: relative;
  @include e(phantom) {
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    position: absolute;
  }
  @include e(content) {
    top: 0;
    left: 0;
    width: 100%;
    position: absolute;
    @include m(item) {
      width: 100%;
      box-sizing: border-box;
    }
  }
}
